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Xelga [282]
3 years ago
10

Which statements about waves are true? (Select TWO)

Biology
1 answer:
NemiM [27]3 years ago
3 0

Answer:

the anser is b and f

Explanation:

etc

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Think about a bush in your backyard. Is it alive according to the characteristics of life? Why or why not ?
Allushta [10]

Question: Think about a bush in your backyard. Is it alive according to the characteristics of life? Why or why not ?

Answer: its alive

Explanation: It performs all necessary life functions to survive which are respiration, reproduction,transpiration and etc

question answered by

(jacemorris04)

6 0
3 years ago
Mark is on a strict diet. He has cut down on fats in order to lose weight. Because Mark is severely restricting his fat intake,
timofeeve [1]
<span>Mark may be getting lower amounts of nutrients and vitamins, namely omega-3s and omega-6s. This would directly affect the brain and normal body functions because the body needs vitamins/nutrients to thrive. This could affect the chemical balance in his brain, resulting in depression/schizophrenia/other issues, including eating disorders. Cutting down on fats might also result in overeating carbs and protein, which leads to an overbalance of nutrients -- and a host of other health issues.Not getting enough fat could also affect bone growth.</span>
3 0
3 years ago
Kathy was making liquid growth medium for plants. The pH of the original solution was 8. The optimal pH for plant growth is 6. W
liubo4ka [24]

If referring to the question: Kathy was making liquid growth medium for plants. The pH of the original solution was 8. The optimal pH for plant growth is 6. What was the best compound to add to make it pH=6?

A) KOH

B) HCL

C) Water

D) No answer provided

Then the correct answer would be option B, to add HCL, known as Hydrochloric acid to lower the pH to 6.

In science, pH is a scale used to measure the acidity of a solution or its basicity. The scale ranges from 0 to 14. A pH of 7 would mean that the given solution is neutral, lower than 7 equates to an acidic solution, while anything above 7 becomes increasingly basic.

Option A is to add KOH, or potassium hydroxide to the original solution whose starting pH is 8. KOH is a solution whose pH is above 8,  a strong base, and is often used to increase the pH of a solution. In the question it states what the desired pH is 6, therefore we want to lower, not increase the pH. This makes option A incorrect.

Water is a neutral solution. Even though it is neutral, it is not used to neutralize basic or acidic solutions. Acid or bases may be added to water to create very diluted solutions that are nearly neutral despite containing a strong base or acid, but this is a different process than neutralization and will not give the desired pH. Option C is also wrong.

Option B is correct because HCL, known as hydrochloric acid is a strong acid, commonly used to lower the pH of a solution by increasing the concentration of hydrogen ions. Since we start with a pH of 8 and wish to achieve a pH of 6, HCL is the correct component to add to the solution. Due to option B being correct, option D that states that no answer is provided, is incorrect.

For more on pH visit:

brainly.com/question/491373?referrer=searchResults

8 0
3 years ago
This is the structure in the cell nucleus that houses a cell's genetic information. Example: Humans have 46 of these.
MArishka [77]
The structure that is in the cell's nucleus that contains the genetic information if it is condensed and becomes wrapped and folded with many histone and other proteins, it is called chromosomes.

Humans do have 46 chromosomes, 44 autosomal ones and 2 sex chromosomes.
4 0
3 years ago
Read 2 more answers
What happen if amoeba spis place in sea water
Juli2301 [7.4K]

Answer:

If amoeba specie placed in the sea water, it will die because sea water contains excess of salts which adversely affect the growth of amoeba.

Explanation:

Amoeba is unicellular organisms i. e. made of a single cell. They are eukaryotic organisms i. e. having true nucleus. Amoeba is found in fresh water lakes and hot spring. Amoeba is not able to live in sea water because sea water contains salt which are not good for amoeba.

7 0
3 years ago
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